Features of engine design (2.7 and 3.0 l) (Audi A4 B7)

49.1. Generator Drive Belt Installation Details 1. Generator belt; 2. Pulley mounting bolt 36; 3. Compensating washer, subject to replacement; 4. Roller plug 13; 5. Generator; 6. Generator mounting bolt, 25 Nm; 7. Roller plug 9; 8. Roller mounting bolt 9.23 Nm; 9. Intermediate roller; 10. Bracket mounting bolt 11, 40 Nm; 11. Generator and roller bracket 9; 12. Roller mounting bolt 13, 23 Nm; 13. Intermediate roller; 14. Roller plug 20; 15. Roller mounting bolt 20, 23 Nm; 16. Pulley mounting bolt 17, 23 Nm; 17. Pump pulley 19; 18. Pump mounting bolt 19.9 Nm; 19. Water pump; 20. Intermediate roller (only on new models); 21. Roller mounting bolt 20, 23 Nm; 22. Roller bracket 20; 23. Pump mounting bolt 24, 23 Nm; 24. Vane pump; 25. Pump pulley 24; 26. Pulley mounting bolt 25, 22 Nm; 27. Gasket, subject to replacement; 28. Auxiliary units bracket; 29. Bracket mounting bolt 28, 40 Nm; 30. Compressor mounting bolt 31, 25 Nm; 31. Air conditioning compressor; 32. Centering bushings; 33. Tensioner mounting bolt 34, 23 Nm; 34. Belt tensioner 1; 35. Tensioner mounting bolt 34, 50 Nm, then tighten to an angle of 90°, subject to replacement; 36. Crankshaft pulley

49.2. Vacuum pump installation details 1. Pump mounting bolt 2.9 Nm; 2. Vacuum pump; 3. Vacuum hose to the brake booster; 4. Vacuum hose; 5. Intake camshaft; 6, 7. Sealing ring, subject to replacement

49.3a. Timing chain cover installation details 1. Front crankshaft oil seal; 2. Centering sleeve; 3, 9. Cover fastening bolt 10, 8 Nm, then tighten to an angle of 90°, subject to replacement; 4. Sealing ring, subject to replacement; 5. Lid; 6. Shield mounting bolt 7.9 Nm; 7. Thermal shield; 8. Cover fastening bolt 5.9 Nm; 10/13. Timing chain cover left/right; 11/14. Cover gasket 10/13; 12, 15. Cover fastening bolt 13, 8 Nm, then tighten to an angle of 90°°, subject to replacement; 16. Centering sleeve; 17. Compaction; 18. Lower timing chain cover; 19. Cover fastening bolt 18

49.3b. Timing chain of the left cylinder head 1. Sprocket mounting bolt 3.5 Nm, then tighten to an angle of 90°, subject to replacement; 2. Sprocket adjusting washer 3; 3. Chain drive sprocket 8; 4. Tensioner mounting bolt 53.5 Nm, then tighten to an angle of 90°, subject to replacement; 5. Chain tensioner 8; 6. Camshaft drive sprocket; 7. Sprocket mounting bolt 6, 23 Nm; 8. Timing chain of the left cylinder head; 9. Sprocket bracket 3; 10. Bracket mounting bolt 9.9 Nm

49.3s. Timing chain of the right cylinder head 1. Sprocket mounting bolt 9, 45 Nm; 2. Sprocket bushing 9; 3. Timing chain of the right cylinder head; 4. Camshaft drive sprockets; 5. Sprocket mounting bolt 4, 23 Nm; 6. Chain tensioner 3; 7. Tensioner mounting bolt 6.5 Nm, then tighten to an angle of 90°, subject to replacement; 8. Sprocket adjusting washer 9; 9. Chain drive sprocket 3

49.3d. Lower timing chain 1. Sprocket bushing 14; 2. Sprocket mounting bolt 14, 45 Nm; 3, 7. Axle, 12 Nm; 4. Sprocket mounting bolt 6.5 Nm, then tighten to an angle of 90°, subject to replacement; 5. Sprocket bushing 6; 6. Left timing chain drive sprocket; 8. Lower timing chain; 9. Chain guide bar 8; 10. Awn, 12 Nm; 11. Bracket mounting bolt 12.9 Nm; 12. Sprocket bracket 6; 13. Adjusting washer; 14. Right timing chain drive sprocket; 15. Axle, 12 Nm; 16. Sealing ring, subject to replacement; 17. Chain tensioner 8; 18. Tensioner mounting bolt 17, 12 Nm; 19. Chain tensioner bar 8; 20. Crankshaft; 21. Chain guide bar 8; 22. Axle, 9 Nm

49.4. Oil pump and balance shaft drive parts 1. Tensioner mounting bolt 2.9 Nm; 2. Chain tensioner 7; 3. Adjusting washer; 4. Pressure spring; 5. Sprocket mounting bolt 6, 23 Nm; 6. Balance shaft sprocket; 7. Oil pump and balance shaft drive chain; 8. Crankshaft; 9. Oil pump sprocket; 10. Sprocket mounting bolt 9, 62 Nm

49.5a. Cylinder head installation details (using the example of the left bank of cylinders) 1. Cylinder head; 2. Driving gear; 3. Wheel mounting bolt 2, 75 Nm; 4. Wheel sealing ring 2, subject to replacement; 5. Bracket mounting bolt 6.9 Nm; 6. Inlet manifold bracket; 7. Cooling system pipe; 8. Hollow bolt, 15.5 Nm; 9. Bolt for fastening the main line 10, 23 Nm; 10. Fuel distribution line; 11. Sealing ring, subject to replacement; 12. Cylinder head mounting bolt, subject to replacement; 13. Pressure limiting valve (except new models),25 Nm; 14. Lifting eye; 15. Bolt for fastening eye 14 (M6 - 9 Nm, M8 - 23 Nm); 16. Intermediate pipe on the left; 17. Pipe mounting bolt 16, 30 Nm, then tighten to an angle of 90°; 18. Laying pipe 16; 19. Cylinder head gasket

49.5b Cylinder Head Cover Installation Details (using the example of the left bank of cylinders) 1, 3. Bracket mounting bolt 2, 9 Nm; 2. Inlet manifold bracket; 4. Sealing ring, subject to replacement; 5. Oil filler neck; 6, 7. Sealing ring; 8. Neck cover 5; 9. Injector mounting bolt 16.5 Nm; 10. Return fuel line; 11. Fuel distribution line; 12. Bolt for fastening the main line 11, 23 Nm; 13. Sealing ring, subject to replacement; 14. Injector mounting nut 16, 9 Nm; 15. Catch (replaced when replacing the injector); 16. Nozzle; 17. Sealing ring; 18. Copper sealing ring; 19. Special cover mounting bolt 20.9 Nm; 20. Cylinder head cover; 21. Cover gasket 20

49.6. Timing belt parts 1. Valve; 2. Cylinder head; 3. Oil deflector cap; 4. Valve springs; 5. Spring plate 4; 6. Split valve lock crackers; 7. Camshaft oil seal, subject to replacement 8/9 Cover mounting bolt/nut 10.9 Nm; 10. Camshaft cover; 11/12. Inlet/outlet camshaft; 13. Rocker; 14. Hydraulic compensator; 15. Pressure limiting valve, 25 Nm

49.7a. Oil pump and lower oil pan installation details 1. Oil pan mounting bolt 13.8 Nm, then tighten to an angle of 90°, subject to replacement; 2. Self-locking bolt of oil separator mounting 3.8 Nm, then tighten to 90° angle, subject to replacement; 3. Oil separator; 4. Oil pump with 11 bar pressure reducing valve and 3.5 bar pressure regulating valve; 5. Pump mounting bolt 4, 23 Nm; 6. Centering bushings; 7. Oil pump drive shaft; 8. Leash; 9. Pressure spring; 10. Adjusting washer; 11. Sprocket mounting bolt 12, 64 Nm; 12. Oil pump sprocket; 13. Oil pan (lower section); 14. Sealing ring, subject to replacement; 15. Drain plug

49.7b. Upper Oil Pan Section Installation Details 1. Oil pan (upper section); 2. Engine mount; 3. Support mounting bolt 2, 40 Nm; 4. Holder mounting bolt 9.9 Nm; 5. Front crankshaft oil seal; 6. Lid; 7. Roller mounting bolt 8, 23 Nm; 8. Intermediate roller of the alternator belt; 9. Front crankshaft oil seal holder; 10, 12. Sealing ring, subject to replacement; 11. Compaction; 13/14. Tube mounting bolts 15, 15/45 Nm; 15. Feeler gauge guide tube; 16, 17. Gasket, subject to replacement; 18/19. Oil pan mounting bolt 1, 15 /45 Nm; 20. Sealing ring, subject to replacement; 21. TDC fixing hole plug; 22. Pressure spring; 23. Leash; 24. Oil pump drive shaft

49.7c. Oil cooler, pressure reducing valve and oil filter installation details 1. Foundation; 2. Base mounting bolt 1.9 Nm; 3. Sealing ring, subject to replacement; 4. D/V oil pressure at 0.9 bar, 20 Nm; 5, 7. Sealing ring, subject to replacement; 6. Gasket, subject to replacement; 8. Oil line mounting bolt 9.9 Nm; 9. Oil supply line; 10. Sealing ring, subject to replacement; 11. Filter element; 12. Gasket, subject to replacement; 13. Cover, 35 Nm; 14. Bolt, 9 Nm; 15. Oil filter mounting bracket; 16. Oil filter housing with a bypass valve for 2-3 bar; 17. PCV valve; 18. Valve mounting bolt 17.9 Nm; 19. PCV tube; 20, 21. Sealing ring, subject to replacement; 22, 24. Oil cooler mounting bolt 23, 9 Nm; 23. Oil cooler; 25. Gaskets subject to replacement; 26. Coolant hose; 27. Front coolant supply pipe; 28. Sealing ring, subject to replacement; 29. Gasket, subject to replacement